Amino acid dipepetide frequency for Nocardia donostiensis

Apart from single amino acid frequencies one can also calculate so called amino acid dipeptide frequency.

There is 400 possibilites (441 if we consider Xaa as additional 21st amino acid representing all non-standard or unknown amino acids). Thus, if the dipeptides would be present randomly in proteins each amino acid dipeptide should be present with 0.25% frequency. As it is not the case in the nature, for better visablity all more than expected dipepetides are marked by red, and those which are underrepresented are marked by blue in the table.

All values are presented as per milles (‰), therefore need to be multiplied by 10-3.

For more information see sequence space article on Wikipedia.

AlaCysAspGluPheGlyHisIleLysLeuMetAsnProGlnArgSerThrValTrpTyrXaa
Ala
21.33AlaAla: 21.33 ± 0.198
0.975AlaCys: 0.975 ± 0.032
8.834AlaAsp: 8.834 ± 0.081
9.034AlaGlu: 9.034 ± 0.113
3.253AlaPhe: 3.253 ± 0.051
12.257AlaGly: 12.257 ± 0.104
2.753AlaHis: 2.753 ± 0.041
4.799AlaIle: 4.799 ± 0.065
2.622AlaLys: 2.622 ± 0.052
13.164AlaLeu: 13.164 ± 0.119
2.535AlaMet: 2.535 ± 0.048
2.172AlaAsn: 2.172 ± 0.039
6.574AlaPro: 6.574 ± 0.076
4.007AlaGln: 4.007 ± 0.053
9.288AlaArg: 9.288 ± 0.086
5.314AlaSer: 5.314 ± 0.061
7.328AlaThr: 7.328 ± 0.067
11.987AlaVal: 11.987 ± 0.12
1.613AlaTrp: 1.613 ± 0.033
2.362AlaTyr: 2.362 ± 0.045
0.0AlaXaa: 0.0 ± 0.0
Cys
1.047CysAla: 1.047 ± 0.029
0.089CysCys: 0.089 ± 0.008
0.469CysAsp: 0.469 ± 0.015
0.366CysGlu: 0.366 ± 0.015
0.193CysPhe: 0.193 ± 0.011
0.874CysGly: 0.874 ± 0.029
0.18CysHis: 0.18 ± 0.01
0.206CysIle: 0.206 ± 0.011
0.116CysLys: 0.116 ± 0.009
0.649CysLeu: 0.649 ± 0.021
0.107CysMet: 0.107 ± 0.009
0.128CysAsn: 0.128 ± 0.009
0.448CysPro: 0.448 ± 0.019
0.159CysGln: 0.159 ± 0.008
0.588CysArg: 0.588 ± 0.023
0.457CysSer: 0.457 ± 0.02
0.475CysThr: 0.475 ± 0.018
0.599CysVal: 0.599 ± 0.016
0.122CysTrp: 0.122 ± 0.009
0.165CysTyr: 0.165 ± 0.009
0.0CysXaa: 0.0 ± 0.0
Asp
7.472AspAla: 7.472 ± 0.091
0.42AspCys: 0.42 ± 0.018
3.802AspAsp: 3.802 ± 0.059
4.056AspGlu: 4.056 ± 0.05
1.671AspPhe: 1.671 ± 0.031
5.598AspGly: 5.598 ± 0.067
1.449AspHis: 1.449 ± 0.029
2.917AspIle: 2.917 ± 0.042
1.126AspLys: 1.126 ± 0.033
6.258AspLeu: 6.258 ± 0.076
1.007AspMet: 1.007 ± 0.028
1.277AspAsn: 1.277 ± 0.032
4.719AspPro: 4.719 ± 0.058
1.818AspGln: 1.818 ± 0.038
5.138AspArg: 5.138 ± 0.063
2.948AspSer: 2.948 ± 0.049
3.834AspThr: 3.834 ± 0.059
4.477AspVal: 4.477 ± 0.052
0.937AspTrp: 0.937 ± 0.026
1.375AspTyr: 1.375 ± 0.035
0.0AspXaa: 0.0 ± 0.0
Glu
6.227GluAla: 6.227 ± 0.093
0.349GluCys: 0.349 ± 0.017
2.276GluAsp: 2.276 ± 0.041
2.692GluGlu: 2.692 ± 0.055
1.957GluPhe: 1.957 ± 0.035
3.37GluGly: 3.37 ± 0.061
1.797GluHis: 1.797 ± 0.041
2.687GluIle: 2.687 ± 0.046
1.166GluLys: 1.166 ± 0.033
7.738GluLeu: 7.738 ± 0.088
1.031GluMet: 1.031 ± 0.027
1.091GluAsn: 1.091 ± 0.029
3.681GluPro: 3.681 ± 0.055
2.828GluGln: 2.828 ± 0.046
5.048GluArg: 5.048 ± 0.066
2.691GluSer: 2.691 ± 0.042
3.197GluThr: 3.197 ± 0.048
4.754GluVal: 4.754 ± 0.064
0.85GluTrp: 0.85 ± 0.024
1.301GluTyr: 1.301 ± 0.029
0.0GluXaa: 0.0 ± 0.0
Phe
4.148PheAla: 4.148 ± 0.059
0.263PheCys: 0.263 ± 0.015
2.436PheAsp: 2.436 ± 0.048
1.513PheGlu: 1.513 ± 0.036
0.842PhePhe: 0.842 ± 0.025
3.298PheGly: 3.298 ± 0.051
0.627PheHis: 0.627 ± 0.022
0.871PheIle: 0.871 ± 0.026
0.371PheLys: 0.371 ± 0.019
2.472PheLeu: 2.472 ± 0.048
0.39PheMet: 0.39 ± 0.019
0.523PheAsn: 0.523 ± 0.018
1.453PhePro: 1.453 ± 0.032
0.73PheGln: 0.73 ± 0.022
1.824PheArg: 1.824 ± 0.037
1.437PheSer: 1.437 ± 0.033
2.002PheThr: 2.002 ± 0.038
2.485PheVal: 2.485 ± 0.043
0.385PheTrp: 0.385 ± 0.016
0.616PheTyr: 0.616 ± 0.02
0.0PheXaa: 0.0 ± 0.0
Gly
10.344GlyAla: 10.344 ± 0.102
0.767GlyCys: 0.767 ± 0.023
4.903GlyAsp: 4.903 ± 0.059
4.749GlyGlu: 4.749 ± 0.067
2.952GlyPhe: 2.952 ± 0.042
7.446GlyGly: 7.446 ± 0.092
2.063GlyHis: 2.063 ± 0.04
4.101GlyIle: 4.101 ± 0.052
2.289GlyLys: 2.289 ± 0.046
8.49GlyLeu: 8.49 ± 0.095
2.118GlyMet: 2.118 ± 0.032
1.908GlyAsn: 1.908 ± 0.035
4.76GlyPro: 4.76 ± 0.058
2.682GlyGln: 2.682 ± 0.045
6.744GlyArg: 6.744 ± 0.072
5.283GlySer: 5.283 ± 0.06
5.598GlyThr: 5.598 ± 0.079
7.418GlyVal: 7.418 ± 0.077
1.543GlyTrp: 1.543 ± 0.033
2.406GlyTyr: 2.406 ± 0.043
0.0GlyXaa: 0.0 ± 0.0
His
2.632HisAla: 2.632 ± 0.048
0.188HisCys: 0.188 ± 0.012
1.319HisAsp: 1.319 ± 0.027
1.231HisGlu: 1.231 ± 0.038
0.584HisPhe: 0.584 ± 0.02
2.229HisGly: 2.229 ± 0.042
0.667HisHis: 0.667 ± 0.024
0.96HisIle: 0.96 ± 0.025
0.326HisLys: 0.326 ± 0.014
2.157HisLeu: 2.157 ± 0.034
0.358HisMet: 0.358 ± 0.016
0.494HisAsn: 0.494 ± 0.016
1.812HisPro: 1.812 ± 0.036
0.678HisGln: 0.678 ± 0.019
2.147HisArg: 2.147 ± 0.041
1.151HisSer: 1.151 ± 0.028
1.43HisThr: 1.43 ± 0.033
1.461HisVal: 1.461 ± 0.03
0.35HisTrp: 0.35 ± 0.016
0.522HisTyr: 0.522 ± 0.018
0.0HisXaa: 0.0 ± 0.0
Ile
6.386IleAla: 6.386 ± 0.063
0.329IleCys: 0.329 ± 0.016
3.462IleAsp: 3.462 ± 0.053
2.72IleGlu: 2.72 ± 0.045
0.917IlePhe: 0.917 ± 0.029
4.549IleGly: 4.549 ± 0.058
0.746IleHis: 0.746 ± 0.021
1.269IleIle: 1.269 ± 0.034
0.703IleLys: 0.703 ± 0.026
2.927IleLeu: 2.927 ± 0.044
0.533IleMet: 0.533 ± 0.018
0.863IleAsn: 0.863 ± 0.024
2.324IlePro: 2.324 ± 0.039
0.903IleGln: 0.903 ± 0.024
2.749IleArg: 2.749 ± 0.041
2.209IleSer: 2.209 ± 0.036
2.835IleThr: 2.835 ± 0.048
3.523IleVal: 3.523 ± 0.048
0.442IleTrp: 0.442 ± 0.017
0.738IleTyr: 0.738 ± 0.026
0.0IleXaa: 0.0 ± 0.0
Lys
2.26LysAla: 2.26 ± 0.046
0.092LysCys: 0.092 ± 0.007
0.901LysAsp: 0.901 ± 0.028
0.886LysGlu: 0.886 ± 0.029
0.539LysPhe: 0.539 ± 0.019
1.299LysGly: 1.299 ± 0.035
0.445LysHis: 0.445 ± 0.018
0.915LysIle: 0.915 ± 0.03
0.601LysLys: 0.601 ± 0.029
1.954LysLeu: 1.954 ± 0.046
0.394LysMet: 0.394 ± 0.017
0.479LysAsn: 0.479 ± 0.018
1.273LysPro: 1.273 ± 0.032
0.716LysGln: 0.716 ± 0.029
1.347LysArg: 1.347 ± 0.041
1.058LysSer: 1.058 ± 0.032
1.252LysThr: 1.252 ± 0.031
1.631LysVal: 1.631 ± 0.04
0.258LysTrp: 0.258 ± 0.013
0.45LysTyr: 0.45 ± 0.017
0.0LysXaa: 0.0 ± 0.0
Leu
14.408LeuAla: 14.408 ± 0.128
0.76LeuCys: 0.76 ± 0.025
7.029LeuAsp: 7.029 ± 0.082
4.786LeuGlu: 4.786 ± 0.061
2.798LeuPhe: 2.798 ± 0.048
8.829LeuGly: 8.829 ± 0.073
2.276LeuHis: 2.276 ± 0.05
4.032LeuIle: 4.032 ± 0.054
1.284LeuLys: 1.284 ± 0.037
10.296LeuLeu: 10.296 ± 0.113
1.537LeuMet: 1.537 ± 0.034
1.792LeuAsn: 1.792 ± 0.034
6.285LeuPro: 6.285 ± 0.076
2.281LeuGln: 2.281 ± 0.04
8.544LeuArg: 8.544 ± 0.082
5.38LeuSer: 5.38 ± 0.065
6.728LeuThr: 6.728 ± 0.085
8.412LeuVal: 8.412 ± 0.083
1.188LeuTrp: 1.188 ± 0.026
1.711LeuTyr: 1.711 ± 0.032
0.0LeuXaa: 0.0 ± 0.0
Met
2.227MetAla: 2.227 ± 0.043
0.154MetCys: 0.154 ± 0.009
0.848MetAsp: 0.848 ± 0.022
0.722MetGlu: 0.722 ± 0.025
0.606MetPhe: 0.606 ± 0.021
1.34MetGly: 1.34 ± 0.029
0.384MetHis: 0.384 ± 0.017
0.835MetIle: 0.835 ± 0.026
0.371MetLys: 0.371 ± 0.018
1.966MetLeu: 1.966 ± 0.038
0.359MetMet: 0.359 ± 0.017
0.504MetAsn: 0.504 ± 0.019
1.123MetPro: 1.123 ± 0.028
0.547MetGln: 0.547 ± 0.018
1.562MetArg: 1.562 ± 0.031
1.455MetSer: 1.455 ± 0.028
1.547MetThr: 1.547 ± 0.032
1.572MetVal: 1.572 ± 0.03
0.244MetTrp: 0.244 ± 0.014
0.331MetTyr: 0.331 ± 0.015
0.0MetXaa: 0.0 ± 0.0
Asn
2.379AsnAla: 2.379 ± 0.042
0.148AsnCys: 0.148 ± 0.009
1.037AsnAsp: 1.037 ± 0.027
0.983AsnGlu: 0.983 ± 0.023
0.527AsnPhe: 0.527 ± 0.02
1.95AsnGly: 1.95 ± 0.035
0.425AsnHis: 0.425 ± 0.018
0.884AsnIle: 0.884 ± 0.028
0.429AsnLys: 0.429 ± 0.018
1.805AsnLeu: 1.805 ± 0.035
0.386AsnMet: 0.386 ± 0.016
0.501AsnAsn: 0.501 ± 0.02
1.567AsnPro: 1.567 ± 0.031
0.597AsnGln: 0.597 ± 0.022
1.526AsnArg: 1.526 ± 0.028
1.086AsnSer: 1.086 ± 0.027
1.336AsnThr: 1.336 ± 0.035
1.385AsnVal: 1.385 ± 0.035
0.32AsnTrp: 0.32 ± 0.015
0.483AsnTyr: 0.483 ± 0.019
0.0AsnXaa: 0.0 ± 0.0
Pro
7.84ProAla: 7.84 ± 0.093
0.303ProCys: 0.303 ± 0.017
4.685ProAsp: 4.685 ± 0.057
4.292ProGlu: 4.292 ± 0.057
1.498ProPhe: 1.498 ± 0.031
6.212ProGly: 6.212 ± 0.072
1.325ProHis: 1.325 ± 0.035
2.229ProIle: 2.229 ± 0.04
1.143ProLys: 1.143 ± 0.034
5.084ProLeu: 5.084 ± 0.065
1.06ProMet: 1.06 ± 0.027
1.125ProAsn: 1.125 ± 0.029
3.456ProPro: 3.456 ± 0.076
1.946ProGln: 1.946 ± 0.049
3.717ProArg: 3.717 ± 0.047
3.109ProSer: 3.109 ± 0.049
3.471ProThr: 3.471 ± 0.051
5.397ProVal: 5.397 ± 0.067
0.862ProTrp: 0.862 ± 0.025
1.109ProTyr: 1.109 ± 0.029
0.0ProXaa: 0.0 ± 0.0
Gln
3.741GlnAla: 3.741 ± 0.051
0.182GlnCys: 0.182 ± 0.009
1.177GlnAsp: 1.177 ± 0.027
1.308GlnGlu: 1.308 ± 0.037
0.865GlnPhe: 0.865 ± 0.027
1.896GlnGly: 1.896 ± 0.039
0.787GlnHis: 0.787 ± 0.022
1.404GlnIle: 1.404 ± 0.029
0.526GlnLys: 0.526 ± 0.024
3.709GlnLeu: 3.709 ± 0.058
0.641GlnMet: 0.641 ± 0.022
0.544GlnAsn: 0.544 ± 0.019
2.047GlnPro: 2.047 ± 0.043
1.594GlnGln: 1.594 ± 0.051
3.046GlnArg: 3.046 ± 0.055
1.297GlnSer: 1.297 ± 0.029
1.448GlnThr: 1.448 ± 0.031
2.865GlnVal: 2.865 ± 0.046
0.545GlnTrp: 0.545 ± 0.023
0.606GlnTyr: 0.606 ± 0.02
0.0GlnXaa: 0.0 ± 0.0
Arg
9.255ArgAla: 9.255 ± 0.091
0.592ArgCys: 0.592 ± 0.021
4.452ArgAsp: 4.452 ± 0.063
4.362ArgGlu: 4.362 ± 0.075
2.537ArgPhe: 2.537 ± 0.04
5.322ArgGly: 5.322 ± 0.059
1.87ArgHis: 1.87 ± 0.033
3.855ArgIle: 3.855 ± 0.05
1.675ArgLys: 1.675 ± 0.047
8.048ArgLeu: 8.048 ± 0.092
1.909ArgMet: 1.909 ± 0.035
1.72ArgAsn: 1.72 ± 0.031
4.322ArgPro: 4.322 ± 0.053
2.358ArgGln: 2.358 ± 0.048
6.931ArgArg: 6.931 ± 0.097
4.288ArgSer: 4.288 ± 0.06
4.986ArgThr: 4.986 ± 0.055
5.888ArgVal: 5.888 ± 0.061
1.333ArgTrp: 1.333 ± 0.031
1.965ArgTyr: 1.965 ± 0.036
0.0ArgXaa: 0.0 ± 0.0
Ser
6.835SerAla: 6.835 ± 0.077
0.372SerCys: 0.372 ± 0.015
3.08SerAsp: 3.08 ± 0.051
2.732SerGlu: 2.732 ± 0.055
1.562SerPhe: 1.562 ± 0.032
5.94SerGly: 5.94 ± 0.066
0.974SerHis: 0.974 ± 0.026
1.992SerIle: 1.992 ± 0.035
0.984SerLys: 0.984 ± 0.029
4.546SerLeu: 4.546 ± 0.062
1.183SerMet: 1.183 ± 0.026
1.008SerAsn: 1.008 ± 0.026
3.031SerPro: 3.031 ± 0.056
1.309SerGln: 1.309 ± 0.027
3.712SerArg: 3.712 ± 0.069
2.999SerSer: 2.999 ± 0.045
3.249SerThr: 3.249 ± 0.042
4.431SerVal: 4.431 ± 0.055
0.866SerTrp: 0.866 ± 0.022
1.173SerTyr: 1.173 ± 0.025
0.0SerXaa: 0.0 ± 0.0
Thr
8.625ThrAla: 8.625 ± 0.092
0.389ThrCys: 0.389 ± 0.018
4.01ThrAsp: 4.01 ± 0.055
3.868ThrGlu: 3.868 ± 0.056
1.634ThrPhe: 1.634 ± 0.039
6.582ThrGly: 6.582 ± 0.092
1.188ThrHis: 1.188 ± 0.028
2.406ThrIle: 2.406 ± 0.042
1.077ThrLys: 1.077 ± 0.025
5.474ThrLeu: 5.474 ± 0.068
1.103ThrMet: 1.103 ± 0.029
1.174ThrAsn: 1.174 ± 0.032
4.001ThrPro: 4.001 ± 0.052
1.502ThrGln: 1.502 ± 0.032
3.867ThrArg: 3.867 ± 0.045
3.207ThrSer: 3.207 ± 0.049
4.008ThrThr: 4.008 ± 0.059
6.122ThrVal: 6.122 ± 0.064
0.785ThrTrp: 0.785 ± 0.024
1.253ThrTyr: 1.253 ± 0.027
0.0ThrXaa: 0.0 ± 0.0
Val
11.17ValAla: 11.17 ± 0.108
0.723ValCys: 0.723 ± 0.023
5.523ValAsp: 5.523 ± 0.067
4.639ValGlu: 4.639 ± 0.059
2.603ValPhe: 2.603 ± 0.047
6.565ValGly: 6.565 ± 0.064
1.933ValHis: 1.933 ± 0.032
3.513ValIle: 3.513 ± 0.051
1.335ValLys: 1.335 ± 0.034
9.506ValLeu: 9.506 ± 0.096
1.442ValMet: 1.442 ± 0.028
1.67ValAsn: 1.67 ± 0.039
4.97ValPro: 4.97 ± 0.072
2.221ValGln: 2.221 ± 0.035
6.606ValArg: 6.606 ± 0.071
4.53ValSer: 4.53 ± 0.057
5.521ValThr: 5.521 ± 0.07
8.259ValVal: 8.259 ± 0.091
1.04ValTrp: 1.04 ± 0.026
1.584ValTyr: 1.584 ± 0.029
0.0ValXaa: 0.0 ± 0.0
Trp
1.459TrpAla: 1.459 ± 0.03
0.143TrpCys: 0.143 ± 0.011
0.781TrpAsp: 0.781 ± 0.024
0.683TrpGlu: 0.683 ± 0.021
0.507TrpPhe: 0.507 ± 0.016
0.946TrpGly: 0.946 ± 0.028
0.348TrpHis: 0.348 ± 0.015
0.584TrpIle: 0.584 ± 0.019
0.299TrpLys: 0.299 ± 0.017
1.721TrpLeu: 1.721 ± 0.036
0.308TrpMet: 0.308 ± 0.013
0.371TrpAsn: 0.371 ± 0.016
0.755TrpPro: 0.755 ± 0.024
0.637TrpGln: 0.637 ± 0.019
1.263TrpArg: 1.263 ± 0.029
0.977TrpSer: 0.977 ± 0.026
0.862TrpThr: 0.862 ± 0.024
1.11TrpVal: 1.11 ± 0.03
0.333TrpTrp: 0.333 ± 0.015
0.315TrpTyr: 0.315 ± 0.012
0.0TrpXaa: 0.0 ± 0.0
Tyr
2.411TyrAla: 2.411 ± 0.044
0.196TyrCys: 0.196 ± 0.011
1.275TyrAsp: 1.275 ± 0.036
1.106TyrGlu: 1.106 ± 0.029
0.64TyrPhe: 0.64 ± 0.021
2.061TyrGly: 2.061 ± 0.043
0.461TyrHis: 0.461 ± 0.018
0.668TyrIle: 0.668 ± 0.02
0.306TyrLys: 0.306 ± 0.013
2.394TyrLeu: 2.394 ± 0.045
0.297TyrMet: 0.297 ± 0.013
0.413TyrAsn: 0.413 ± 0.015
1.263TyrPro: 1.263 ± 0.03
0.716TyrGln: 0.716 ± 0.021
2.025TyrArg: 2.025 ± 0.031
1.102TyrSer: 1.102 ± 0.026
1.166TyrThr: 1.166 ± 0.031
1.577TyrVal: 1.577 ± 0.041
0.387TyrTrp: 0.387 ± 0.015
0.472TyrTyr: 0.472 ± 0.021
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.0XaaAla: 0.0 ± 0.0
0.0XaaCys: 0.0 ± 0.0
0.0XaaAsp: 0.0 ± 0.0
0.0XaaGlu: 0.0 ± 0.0
0.0XaaPhe: 0.0 ± 0.0
0.0XaaGly: 0.0 ± 0.0
0.0XaaHis: 0.0 ± 0.0
0.0XaaIle: 0.0 ± 0.0
0.0XaaLys: 0.0 ± 0.0
0.0XaaLeu: 0.0 ± 0.0
0.0XaaMet: 0.0 ± 0.0
0.0XaaAsn: 0.0 ± 0.0
0.0XaaPro: 0.0 ± 0.0
0.0XaaGln: 0.0 ± 0.0
0.0XaaArg: 0.0 ± 0.0
0.0XaaSer: 0.0 ± 0.0
0.0XaaThr: 0.0 ± 0.0
0.0XaaVal: 0.0 ± 0.0
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.0XaaXaa: 0.0 ± 0.0
Statistics based on 4892 proteins (1613563 amino acids)

Note: The error has been estimated with the bootstraping (x100) at the protein level

Above dipeptide statistics (among other stats for this proteome) you can download from this CSV file
See this proteome in: uniprot_link
Proteome-pI is available under Creative Commons Attribution-NoDerivs license, for more details see here

Reference: Kozlowski LP. Proteome-pI 2.0: Proteome Isoelectric Point Database Update. Nucleic Acids Res. 2021, doi: 10.1093/nar/gkab944 Contact: Lukasz P. Kozlowski